Yeast & Mold [Petrifilm]

This test method determines the enumeration of yeasts and molds in foods, beverages, and ingredients using a dry rehydratable film method—specifically the Petrifilm™ Yeast and Mold Count Plate. This test has an incubation period of 3-5 days.

Volatile Acids

This test method is used to determine the concentration of volatile fatty acids (VFAs), such as acetic, propionic, and butyric acids, in wastewater, anaerobic digesters, and other biological treatment systems.

USP Nonvolatile Residue in Ethanol

This USP test for Nonvolatile Residue in Ethanol is a purity test designed to measure the amount of residual matter that remains after ethanol is completely evaporated. It helps assess the cleanliness and purity of ethanol used in pharmaceutical and laboratory applications.

Vitamin B-9

This test method quantitatively analyzes vitamin B-9 (folic acid) in complex food and supplement matrices using UPLC-MS technology. By combining UPLC separation with mass detection, this method achieves superior sensitivity and selectivity compared to UV-only approaches, enabling reliable biotin quantification even at trace levels.

USP Glycerin Limit of Glycol

This USP test method follows the glycol determintation procedure directly from the USP Monograph for glycerin.

USP Glycerin Limit of Chlorinated Compounds

This USP test method follows the chlorinated compounds determintation procedure directly from the USP Monograph for glycerin.

USP Glycerin Organic Impurites Related Compounds

This USP test method follows the organic impurities and related compunds determintation procedure directly from the USP Monograph for glycerin.

USP Glycerin Sulfate

This USP test method follows the sulfate determintation procedure directly from the USP Monograph for glycerin.

USP Glycerin Residue on Ignition

This USP test method follows the residue on ignition determintation procedure directly from the USP Monograph for glycerin.

USP Glycerin Heavy Metals

This USP test method follows the heavy metals determintation procedure directly from the USP Monograph for glycerin.